11621210544003 has 16 divisors (see below), whose sum is σ = 15511969120256. Its totient is φ = 7738963352640.

The previous prime is 11621210543989. The next prime is 11621210544049. The reversal of 11621210544003 is 30044501212611.

It is not a de Polignac number, because 11621210544003 - 2¹⁰ = 11621210542979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11621210544103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163314450 + ... + 163385592.

It is an arithmetic number, because the mean of its divisors is an integer number (969498070016).

Almost surely, 2^{11621210544003} is an apocalyptic number.

11621210544003 is a deficient number, since it is larger than the sum of its proper divisors (3890758576253).

11621210544003 is an equidigital number, since it uses as much as digits as its factorization.

11621210544003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130194.

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 11621210544003 its reverse (30044501212611), we get a palindrome (41665711756614).

The spelling of 11621210544003 in words is "eleven trillion, six hundred twenty-one billion, two hundred ten million, five hundred forty-four thousand, three".